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CdSe Magic-Size Clusters Deviate from Nanocrystal-Size Scalings for Ultrafast Intraband Relaxation and Auger Recombination
The cluster regime of colloidal semiconductor quantum dots (QDs) occupies an interesting space on the continuum from molecule to bulk material and allow the study of QD properties at extreme quantum confinement limits. For typical QDs, several size-dependent property trends are well established including intraband relaxation rates and universal scaling of Auger recombination with particle volume. Advances in synthesis now allow isolation of atomically precise semiconductor magic-size clusters (MCs), which offer experimental insight regarding how electronic structure changes with particle size in the ultrasmall limit. Here, we report intraband cooling and Auger recombination for several stable CdSe MCs as a function of particle size and observe deviation from QD response in the cluster regime. We additionally show optical signatures ascribed to transient disordering 2 that appear in the single exciton regime for MCs, which point to complexities regarding their implementation.
Controlling Morphology in Polycrystalline Films by Nucleation and Growth from Metastable Nanocrystals
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Probing Dopant Locations in Silicon Nanocrystals via High Energy X-ray Diffraction and Reverse Monte Carlo Simulation
Abstract not provided
Binary Superlattices of Infrared Plasmonic and Excitonic Nanocrystals
Abstract not provided
Co-assembling Polysaccharide Nanocrystals and Nanofibers for Robust Chiral Iridescent Films
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Design of Interfacial Crowding for Elastomeric Reinforcement with Nanocrystals
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Surfactant–Polymer Complexation and Competition on Drug Nanocrystal Surfaces Control Crystallinity
Not provided.
Effect of BaCO[subscript 3] Impurities on the Structure of BaTiO[subscript 3] Nanocrystals: Implications for Multilayer Ceramic Capacitors
Abstract not provided
In Situ Growth of Cu/CuO/Cu[subscript 2]O Nanocrystals within Hybrid Nanofibers for Adsorptive Arsen
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